.exam-container {
  margin: 5px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, .12), 0 0 6px rgba(0, 0, 0, .04);
  padding: 10px;
  border-radius: 2px;

}

.container {
  height: 570px;
  overflow-y: scroll;
  position: relative;
}

.content {
  height: 1900px;
  /* 高度大于容器高度，以显示滚动条 */
}

.container::-webkit-scrollbar {
  width: 10px;
}

.container::-webkit-scrollbar-track {
  background: #f1f1f1;
}

.container::-webkit-scrollbar-thumb {
  background: #888;
}

.container::-webkit-scrollbar-thumb:hover {
  background: #555;
}

.pagination {
  margin-top: 20px;
}

.title {
  display: flex;

}

.button {
  /* flex: 1; */
  height: 50px;
  line-height: 50px;
}

.box-button3 {
  /* flex: 1; */
  height: 50px;
  line-height: 50px;
  margin: auto;
  width: 400px;
  /* padding-left: 30px; */
}


.example {
  margin: auto;
}

#button-qy {
  border: 1px solid #67c23a;
  color: #67c23a;
  background-color: #f0f9eb
}

#button-ban {
  border: 1px solid #f56c6c;
  color: #f56c6c;
  background-color: #fef0f0
}

#button-xj {
  border: 1px solid #e6a23c;
  color: #e6a23c;
  background-color: #fdf6ec
}